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Large-scale synthesis and characterization of helically coiled carbon nanotubes by use of Fe(CO)5 as floating catalyst precursor

Title data

Hou, Haoqing ; Zeng, Jun ; Weller, Frank ; Greiner, Andreas:
Large-scale synthesis and characterization of helically coiled carbon nanotubes by use of Fe(CO)5 as floating catalyst precursor.
In: Chemistry of Materials. Vol. 15 (August 2003) Issue 16 . - pp. 3170-3175.
ISSN 1520-5002
DOI: https://doi.org/10.1021/cm021290g

Official URL: Volltext

Abstract in another language

Helically shaped multiwalled carbon nanotubes (HCNTs) (diameter 30-80 nm) were obtained as main products in large quantities by co-pyrolysis of Fe(CO)(5) as floating catalyst precursor and pyridine or toluene as carbon source at temperatures above 1000 degreesC under flow of hydrogen. In contrast, pyrolysis at 700-800 degreesC yielded only carbon-coated Fe nanoparticles. The HCNTs were characterized by electron microscopy, Raman spectroscopy, and wide-angle X-ray diffraction. The growth mechanism of the HCNTs was discussed on the basis of previously reported models.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: CHEMICAL-VAPOR-DEPOSITION; SINGLE-WALLED NANOTUBES; GRAPHITIC CARBON; RAMAN-SPECTRA; GROWTH-MECHANISM; ELECTRONIC-STRUCTURE; GLASSY-CARBON; CAGE FORMS; PYROLYSIS; HYDROCARBON
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II > Chair Macromolecular Chemistry II - Univ.-Prof. Dr. Andreas Greiner
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II
Result of work at the UBT: No
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 09 Apr 2015 13:38
Last Modified: 09 Apr 2015 13:38
URI: https://eref.uni-bayreuth.de/id/eprint/9742